Teaching methodology, learning techniques, linguistics-- any of the various aspect of learning or teaching a foreign language.

hello, I am new here and interested in learning spanish! Although I am learning out of pure interest to the culture and language, I am thinking i should progress according to the framework(A1, A2,....) for also practical reasons, can anyone suggest what would be good A1 level book .I've come across a few-
El Cronometro A1,
Preparacion Dele: Libro + CD - A1
,AULA INTERNACIONAL 1 (A1)
could use the advice though.
Thank you very much fot the help!